Is it possible to obtain a mortgage loan for a USA home from a foreign country?

I am wondering if it is possible to obtain a LOWER interest mortgage loan by obtaining if from a foreign country? Could you give me any web site references? Thanks!
Also have you ever heard of Sydney Financial Group?
I found this question from another one that was posted previous to this one, and I was just wondering if this could really happen.

To my understanding no, you can borrow money from where ever you want but trying to borrow money from a forein country on a property in the US sounds to risky. Good luck

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